/***********************************

  Function Prototypes

 *********************************** */

/* ************General Functions************* */

int xml_dump();

int distrend_do();

int start_data(struct general_info *general_info);

void finish_frame(struct general_info *geninfo, struct distrenjob *distrenjob, int frame);

int mortition(struct general_info *geninfo, struct distrenjob *job);

int restoreJobState(struct distrenjob *job);

int prepare_distrenjob(struct general_info *geninfo, int type, char *name, char *submitter, int priority, int start_frame, int end_frame, int width, int height);

int distrenjob_enqueue(struct general_info *geninfo, struct distrenjob *job);

int change_job_priority(struct general_info *geninfo, struct distrenjob *job, int new_priority);

int find_jobframe(struct general_info *geninfo, struct distrenjob **job, struct frameset **frame);

int find_jobframe_from_job(struct distrenjob *distrenjob_ptr, struct distrenjob **job, struct frameset **frame);

int find_jobframe_new(struct general_info *geninfo, int rend_pwr, struct distrenjob **job, struct frameset **frame);

int find_jobframe_again(struct general_info *geninfo, int jobnum, int rend_pwr, struct distrenjob **job, struct frameset **frame);

void frame_watchdog(struct distrenjob *distrenjob_head);

void distrenjob_remove(struct general_info *geninfo, struct distrenjob *bj);

int distrend_do_config(int argc, char *argv[], struct distrend_config **config);

int distrend_config_free(struct distrend_config *config);

/* **************XML Functions**************** */

void update_general_info(struct general_info *geninfo);

int import_general_info(struct general_info *general_info);

int restore_distrenjob(struct general_info *geninfo, struct distrenjob **distrenjob, jobnum_t jobnum);

int update_xml_joblist(struct general_info *geninfo);

int createQueueFromXML(struct general_info *geninfo);

int reCreateQueueFromXML(struct general_info *geninfo, xmlDocPtr doc, xmlNodePtr current);

/* **************Test Functions**************** */

int printFrameInfo(struct frameset *frame);

int printJob(struct distrenjob *job);

int printJobInfo(struct distrenjob *job);

int printAllJobnums(struct distrenjob *head);

int interactiveTest(int test, struct general_info general_info);

int job_getserialfilename(char **filename, struct general_info *geninfo, unsigned int jobnum, int createdir);

int distren_mkdir_recurse(char *dirname);

/* ************************** Main ************************* */

int main(int argc, char *argv[])

{

  /* Parse arguments */

  int counter;

  int test = 0; /*< Interactive mode if 1 */

  struct general_info general_info;

  int cont;

  struct distrend_clientset *clients;

  enum clientstatus

  {

    CLIENTSTATUS_UNINITIALIZED = 0,

    CLIENTSTATUS_BUSY = 1,

    CLIENTSTATUS_IDLE = 2

  } clientstatus;

  xmlinit();

  for(counter = 0; counter < argc; counter ++)

    {

      if(strcmp(argv[counter], "-h") == 0)

      {

    	  fprintf(stderr, "Usage: distrend [option] \nStarts the distrend server\n\t-h\tshow this help\n\t-t\tlaunches queue testing interface \n");

		  return 2;

      }

      else if(strcmp(argv[counter], "-t") == 0)

      {

    	  fprintf(stderr, "Entering into test mode...\n\n");

		  test=1;

      }

    }

  cont = 1;

  if(distrend_do_config(argc, argv, &general_info.config))

    return 1;

  /** preset paths */

  _distren_asprintf(&general_info.files.geninfo, "%s/general_info.xml",

		    general_info.config->datadir);

  if(start_data(&general_info))

    {

      fprintf(stderr, "%s:%d: start_data() failed\n", __FILE__, __LINE__);

      return 1;

    }

  /** pre-loaded jobs for testing */

  prepare_distrenjob(&general_info, 1, "awesome", "LordOfWar", 8, 1, 100, 640, 480);

  prepare_distrenjob(&general_info, 1, "hamburger", "ohnobinki", 3, 1, 50, 1280, 720);

 // Execute test function

 interactiveTest(test, general_info);

  distrend_listen(general_info.config, &clients);

  /* This is called the "main loop" */

  while(!general_info.config->die)

    {

      int clientsays = 0; /*< temporary example variable, will be replaced when we can handle messages */

      distrend_accept(general_info.config, clients);

      /* Make the following code more event-driven */

      frame_watchdog(&general_info.head);

      struct frameset *frame;

      struct distrenjob *job;

      /* If the client is idle, must be modified for climbing through linked list of clients (client->clientnum) */

      if(clientstatus == CLIENTSTATUS_IDLE)

	{

	  int returnnum = find_jobframe(&general_info, &job, &frame); // Finds a frame to render

	  if(returnnum)

	    {

	      fprintf(stderr,"No frames are available to render at this time. Idling...\n");

	      sleep(10);

	    }

	  else

	    remotio_send_to_client(frame->num, job->jobnum); // Pseudo-sends data to client

	}

      /* If the client states that they finished the frame */

      	if(clientsays == DISTREN_REQUEST_DONEFRAME){

      	  clientstatus = CLIENTSTATUS_IDLE; // Sets the client back to idle

      	  finish_frame(&general_info, job, frame->num); // @TODO: Make sure this actually works.

      	}

    } /* while(!general_info.config->die) */

  distrend_unlisten(general_info.config->listens, clients);

  distrend_config_free(general_info.config);

  xmlcleanup();

  /** free() paths */

  free(general_info.files.geninfo);

  return 0;

}

int interactiveTest(int test, struct general_info general_info){

       test = 0;